How to Break in a New Engine

There's nothing quite like the feeling that comes with buying a new vehicle, except perhaps the trepidation that you'll do something wrong and ruin the new engine. You'll be pleased to learn that today's engines don't require a long and complicated break-in period. By following a few guidelines and using common sense, you will have your new car broken in and ready for many years of reliable service on the road in a short amount of time.

  • Keep the majority of your driving speed under 50 mph for the first 60 miles. After the first 60 miles, speeds from 50 to 55 mph are recommended.

  • Drive your vehicle in a moderate fashion for the first 300 miles.

  • Briefly accelerate to full throttle when driving at the optimum (50 to 55 mph) speed.

  • Avoid wide open acceleration in low gear, as engine damage can occur.